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FGUS65 KSTR 132319
ESGWY
COLORADO BASIN RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE SALT LAKE CITY UTAH
SPRING FLOOD POTENTIAL
FOR THE GREEN AND BEAR RIVER BASINS IN WYOMING
FEBRUARY 13, 2018
The 2018 spring runoff flood potential due to snowmelt is
not high at this time in the Upper Green River and Bear River
Basins of southwest Wyoming due average and below
average snowpack. However, it is still early in
the snow accumulation season in southwest Wyoming and
conditions can change before runoff begins.
Month to date precipitation for the month of February so far has
been above average in parts of the Upper Green River above Fontenelle
reservoir and below to much below average for other areas in
southwest Wyoming. Precipitation as February 1st and current
snow conditions are listed below.
PRECIPITATION AND SNOWPACK (% OF AVERAGE):
SUBBASIN JAN OCT-JAN FEB 13
PRECIP PRECIP SNOW
---------------------- ------ ------- -----
GREEN ABV FLAMING GORGE 85 90 105
BEAR RIVER HEADWATERS 75 80 70
The current volume forecasts for the April through July runoff period
are near average in the Upper Green River and below average in the
Bear River Basin. Although spring temperatures affect the pattern of snowmelt
runoff and consequently the magnitude of peak flows, peak flows may
roughly correspond to volumetric flows.
It is also important to keep in mind that an extended period of much
above normal temperatures or heavy rainfall during the melt period
can cause or exacerbate flooding problems in any year.
The spring runoff flood potential will be re-evaluated in early March
and an updated product will be issued at that time.
CBRFC/Nielson
$$